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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2409.13492 |
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| _version_ | 1866909503706890240 |
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| author | Klamka, Jan Zarnecki, Aleksander Filip |
| author_facet | Klamka, Jan Zarnecki, Aleksander Filip |
| contents | This paper presents results of the first full simulation study addressing prospects for observation of long-lived particles (LLPs) with the International Large Detector (ILD), operating at the International Linear Collider (ILC) at $\sqrt{s}=250$ GeV. Neutral LLP production, resulting in a displaced vertex signature inside the ILD's time projection chamber (TPC), is considered. We focus on scenarios interesting from the experimental perspective and perform a search based on displaced vertex finding inside the TPC volume. Two experimentally challenging scenarios are explored: the first involving very soft final states due to a small mass splitting between a heavy LLP and the dark matter particle to which it decays, and the second with production of a light and therefore highly boosted LLP resulting in almost colinear vertex tracks. The expected limits on the signal production cross section are presented for a wide range of the LLP proper lifetimes corresponding to $cτ$ from 0.1 mm to 10 km. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_13492 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Searching for displaced vertices with a gaseous tracker for a future e$^+$e$^-$ Higgs factory Klamka, Jan Zarnecki, Aleksander Filip High Energy Physics - Experiment High Energy Physics - Phenomenology This paper presents results of the first full simulation study addressing prospects for observation of long-lived particles (LLPs) with the International Large Detector (ILD), operating at the International Linear Collider (ILC) at $\sqrt{s}=250$ GeV. Neutral LLP production, resulting in a displaced vertex signature inside the ILD's time projection chamber (TPC), is considered. We focus on scenarios interesting from the experimental perspective and perform a search based on displaced vertex finding inside the TPC volume. Two experimentally challenging scenarios are explored: the first involving very soft final states due to a small mass splitting between a heavy LLP and the dark matter particle to which it decays, and the second with production of a light and therefore highly boosted LLP resulting in almost colinear vertex tracks. The expected limits on the signal production cross section are presented for a wide range of the LLP proper lifetimes corresponding to $cτ$ from 0.1 mm to 10 km. |
| title | Searching for displaced vertices with a gaseous tracker for a future e$^+$e$^-$ Higgs factory |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2409.13492 |